Composite insulated building block



July 20, 1937. KOESTER 2,087,541

COMPOSITE INSULATED BUILDING BLOCK Filed May 8, 1956 2 Sheets-Sheet 1 6 0'6 06 o''o'oa 00 00 66 06 oo 00 00 10 i/ L I, I nven (or Eeaenbi Ell 06S {er 5 By W a A Home);

July .20, 1937. F. H. KOESTER 2,087,541

COMPOSITE INSULATED BUILDING BLOCK Filed May 8, 1936 2 Sheets-Sheet 2 I 0 n l:

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11 l vi Patented July 2,

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4: Claims.

This invention relates to a structurally new and novel composite insulated building block of the cementitious variety, and the principal purpose of the invention is to provide an article of this type characterized primarily by a novel and improved core unit effective as a soundproofing and insulating agent.

The nature of the block developed "as a result of this invention is cne which is usable especially for wall construction and/or the construction of dividers or partitions in building structures, and the preferred embodimentcomprises a block having communicating marginal grooves and differently finished main and surbordinate surfaces.

Reviewed otherwise, it may be pointed out that one feature of the invention is in the provision of a block having a scratch-coat forming a relatively rough inner surface to facilitate plastering thereon, and having a hard finished glossy or glazed outer surface primarily for ornamentation.

' A further object is found in the block construc tion having a novel insulating core imbedded therein calculated to minimize Weight and to at the same time provide requisite insulating properties.

In the accompanying illustrativer drawings, wherein like numerals'are employed to designate like parts throughout the views:

Figure 1 is a perspective drawingof the finished preferred cement block, constructed specifically in accordance with the principles of the present invention;

Figure 2 is an elevational view showing a pair 5 of blocks jointed together in partition or wall forming relationship;

Figure 3 is a view partly in elevation and partly in section, the view being of a fragmentary nature 'and serving to illustrate the features individually;

Figure 4 is an enlarged fragmentary corner section taken approximately on the plane of the line 3-4 of Figure 3;

Figure 5 is a perspective view of a wooden tie or binding stick used in wall construction work;

45 Figure 6 is an elevational view of the, cagelike multiple slat or lath member forming the important part of the insulating core;

Figures 7 and 8 are sections at right angles to each other taken on the planes of the lines 'l-l and 8-8, respectively, of Figure 6.

In practice liquid cement, preferably made from a predetermined formula, is poured into a casting mold or form of a suitable type (not shown). After sufficient of the cement or other 5 plastic substance is poured into the form, a core unit 26 is imbedded therein. The core is centralized and settled close to the bottom, and then the final pouring is made on top of the form to provide the core embodied shell or block 271. The

. last pouring of cement may be conveniently described as the scratch coat forming the then top of the structure. At this stage in the proceedings I take a roughly cut plywood strip (not shown) and make the scratch coat even with the top of the form. At the end of about 24 hours the form can be opened and the block removed. Blocks for partitions may be made the same way, only both sides may be made with cement plaster.

The finished block iii in outside appearance, that is, the one for ornamental wall construction, includes a smooth outer surface 28 which may be said to be glazed. The scratch coat surface 29 is on the inside. The numerals i-lll designate the surrounding marginal grooves.

Considering now the construction of the allimportant core unit 26, this is in the form of a hollow open-like box or cage and is made from a frame structure including longitudinal rails 3i and transverse or end rails 32, slats flit being nailed to the frame in spaced parallelism as shown to advantage in Figure 1. The slats are preferably in the nature of ordinary wall construction laths. The filler is indicated by the numeral (i l and is what is called in the trade rockwool. Incidentally, the expressions rockwool and laths and cement are used advisedly inasmuch as the filler may be of appropriate material and the laths made of metal or other material. Then, too, the cementitious shell may be a combination of cement and plaster or other plastic material. possessing requisite strength and durability. v

The numeral 35 in Figure 5 designates a polygonal stick or binding and tie rod used in the partition orwall construction as illustrated for instance in Figure 2. It might be stated here that the method of joining blocks is as follows: The blocks are joined together in the length by using one long strip 35 which is pasted in the groove of the adjacent or companion block. The heightof the wall determines, as a general proposition, the length of the stick. A suitable adhesive or paste mixture is used and is applied to the. surfaces forming the groove and the stick, and in this way an effective bond between the parts is insured.

It is evident that the novelty relied upon for distinctiveness resides primarily in the wooden cage and filler means contained therein and forming the practical soundproofing and insulating core.

It is thought that the description taken in connection with the drawings will enable a clear understanding of the invention to be had. Therefore, a more lengthy description is thought unnecessary.

While the preferred embodiment of the invention has been shown and described, it is to be understood that minor changes coming within the field of invention claimed may be resorted to if desired.

I claim:

1. As a new article of manufacture, a composite substantially soundproof insulated building tile comprising a cementitious shell substantially rectangular in plan view and cross-sectional form, and a core unit built into said shell, said core unit comprising a wooden frame provided on opposite sides with spaced parallel laths forming a cage, and an all-porous filler of wool or equivalent fibrous material in said cage.

2. As a new article of manufacture, a composite substantially sound-proof insulated building tile comprising a cementitious hollow body substantially rectangular in plan view and cross-sectional form, and a sound-proofing and insulating core unit imbedded centrally in said body, said core unit being of an area slightly less than that of the surrounding body and comprising a rectangular wooden frame including spaced parallel longitudinal side members and adjoining trans-'- verse end members, and a plurality of longitudinally spaced parallel slats, the slats being arranged on opposite sides of the frame and at-- tached to the adjacent edges of the longitudinal frame members to form a cage, and a porous filler of fibrous material in said cage.

3. As a component part of a composite building tile of the class described, a core unit adapted to be imbedded in the tile, said unit comprising a rectangular wooden frame including spaced parallel longitudinal side members and adjoining transverse end members, a plurality of transversely disposed slats arranged in spaced parallel order, the slats being fastened at their opposite ends to opposite longitudinal edges of the longitudinal side members, the slats in conjunction with the frame forming an open work cage, and a fibrous filler confined in said cage.

4. A composite insulated building block comprising a. main body portion formed of cementitious material, said body portion being substantially rectangular in plan view and having a V- shaped groove formed in its marginal edge portions, a soundproofing and insulating core imbedded in said body, one side of the core being spaced from the adjacent face of the block, the other side of the core terminating flush with the opposite face of the block, and a cementitious slab conforming in area to said body portion, said slab being joined to the last-named lace and superposed upon and in direct contact with the core, the display face of said slab being formed with a scratch coat, and the display face 01' the body portion being glazed.

FREDERICK I-I. KOESTER. 

